Remote code execution via integer overflow
Published Sep 8, 2026 · Updated Sep 9, 2026
Integer overflow in Microsoft Office Publisher allows remote attackers to execute code when a user interacts with malicious content. Microsoft has not disclosed the affected parsing locus, crafted input field, or operation through which arithmetic wraparound enables code execution. Exploitation requires user interaction but no prior authentication, and successful execution occurs in the affected Office user's context.
Summary
What happened
Integer overflow in Microsoft Office Publisher allows remote attackers to execute code when a user interacts with malicious content. Microsoft has not disclosed the affected parsing locus, crafted input field, or operation through which arithmetic wraparound enables code execution. Exploitation requires user interaction but no prior authentication, and successful execution occurs in the affected Office user's context.
The record
- CVE
- CVE-2026-69742
- Published
- Sep 8, 2026
- Updated
- Sep 9, 2026
- Vendor
- Microsoft
- Product
- Microsoft Office 2019
- Classifications
- CWE-190, CAPEC-92, T1203
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 8, 2026CVE publishedPublication date reported by the CVE source.
- Sep 9, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=19.0.0 <16.0.10417.20207
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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